| 摘要 |
PURPOSE: An electric booster braking system using a fail-safe valve is provided to secure stable braking force while reducing costs and weight by using a simplified fail-safe structure. CONSTITUTION: An electric booster braking system using a fail-safe valve comprises an ECU(Electronic Control Unit)(1), a sub master cylinder(5), a main master cylinder(8), a fail-safe unit(10), an ESC(Electronic Stability Control)(20), and a braking unit(30). The sub master cylinder generates hydraulic force directly through a pedal(2). The main master cylinder generates hydraulic force by using an electric booster(7). The electric booster is controlled by the ECU. The fail-safe unit comprises an oil pressure interlocking line(11) and a solenoid valve(12). The oil pressure interlocking line connects the sub master cylinder and the main master cylinder. A control valve is installed in the oil pressure interlocking line and supplies the oil pressure of the sub master cylinder to the main master cylinder. |
